Quick questions?

[SodaPop]

Hello, I'm rather new to Flash CC and I was wondering if anyone could answer some of the questions I have.

1. Is there any way to export graphics/movie clips as gifs or png sequences with transparent backgrounds?
   
2. What are the best ways to maintain quality and audio sync during preview and render?
   
3. What are some time savers in Flash CC?
   

I appreciate anyone taking the time to read this or answer.